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Crossing the T

From Liquipedia StarCraft Brood War Wiki

Crossing the T is a term for the tactic of cutting off an incoming enemy line of units with a concave arc of ranged units, thus maximizing your damage output while minimizing theirs. The term stems from naval warfare but is applicable in any situation in which ranged units engage.

A good example for you to imagine visually is that a group of Marines can beat a group of more Marines if you position your Marines in a line with hold position perpendicular to where the enemy Marines are coming from. Because your enemy's units aren't likely coming in a line you will have the advantage in dealing more damage than your opponent can. Your enemy will be trying to get into a better position while you are attacking.

Use[edit]

  • The damage output of the crossing force is always at the maximum because all units are within range of the opponent as early as possible.
  • The damage output of the crossed force is minimized because the entry of their units to the battle is staggered by their formation.
  • In a fight between units with equal range the front unit of the crossed force will stop and return fire upon entering the battle, blocking his allies and further staggering the entry of their units.
  • Because the crossed units enter the battle one at a time there is an intrinsic bias towards the crossing units focus firing, further minimizing the damage output of the crossed force.

Tactics[edit]

  • Creating a concave around terrain which will force the opposing army into a line formation, such as choke points, ramps or bridges.
  • Feigning an ill-conceived attack then retreat while spreading your forces out and luring his army into a disordered counterattack.
  • Intercepting their army traveling around the map, not by attack moving towards it but by attack moving perpendicular to their route, so your army naturally forms a line, and then attack moving towards him.